All about dinosaurs, fossils and prehistoric animals by Everything Dinosaur team members.
10 12, 2019

Lice Feeding on Dinosaur Feathers Entombed in Amber

By | December 10th, 2019|Dinosaur and Prehistoric Animal News Stories, Dinosaur Fans, Main Page, Palaeontological articles, Photos/Pictures of Fossils|0 Comments

Ancient Lice Fed on Dinosaur Feathers

With the evolution of modified scales into feathers, it was very likely that feather-feeding invertebrates would evolve to exploit this new food source.  However, the lack of fossils prevents palaeontologists from being able to plot how feather-feeding behaviours evolved.  However, damaged dinosaur down, complete with several lice-like insects preserved in 100-million-year-old amber confirms that by the Early Cretaceous, feathery dinosaurs had parasites that specialised on feeding upon their integumentary systems.

Writing in the on-line, academic journal “Nature Communications”, a team of scientists, including researchers from the Russian Academy of Sciences, the Smithsonian Institute and the Chinese Academy of Sciences, describe the discovery of ten nymph specimens, a new lineage of insect preserved alongside the dinosaur downy feathers they were feeding upon in amber from northern Myanmar.

The new insect species has been named Mesophthirus engeli.  The specific name “engeli” is dedicated to Dr Michael S. Engel, for his outstanding contribution to entomological research.

Parasitic Nymphs Feeding on Dinosaur Feathers

Feather-feeding insects preserved in amber.

Parasitic insects feeding on a dinosaur feather preserved in amber.

Picture Credit: Nature Communications

The photograph (above), shows an amber nodule with the specimens of the newly described parasitic insect Mesophthirus engeli preserved in situ.  Photograph (a), shows the whole feather and the locations of the insects.  White stars indicate parts of the feather with relatively complete barbules, whilst the black stars indicate areas that show probable feeding damage.  Scale bars (a) = 1 mm, 100 µm (b-j) and (k) 0.5 mm.

Ectoparasitic Morphological Characters

The nymphs demonstrate a series of ectoparasitic morphological traits such as a small, wingless body, a relatively large head with strong mouth parts and robust, short antennae.  These insects preserved in association with partially damaged dinosaur feathers, the damage probably caused by their feeding behaviour, suggests that feather-feeding insects originated in the Cretaceous, accompanying the radiation of the feathered dinosaurs, including the early birds.

Magnified Views of Mesophthirus engeli Along with Line Drawings and Life Reconstruction

Feather-feeding insects preserved in amber.

Views of Mesophthirus engeli specimens, line drawings and life reconstruction.

Picture Credit: Nature Communications

The picture (above), shows magnified views of the M. engeli specimens (a, c, d, e, g and h), with accompanying line drawings (b and f) and a life reconstruction (i).  Scale bars equal 50 μm.  The colour of the insects in the life reconstruction (i) are conjectural and reflect the general colouring of living feather-feeding lice.

To read a related article about the remains of blood-sucking mites being found preserved in burmite (amber from Myanmar): A Blood-sucking Story – Dinosaur Parasites Preserved in Amber.

The scientific paper: “New insects feeding on dinosaur feathers in mid-Cretaceous amber” by Taiping Gao, Xiangchu Yin, Chungkun Shih, Alexandr P. Rasnitsyn, Xing Xu, Sha Chen, Chen Wang and Dong Ren published in Nature Communications.

10 12, 2019

Dinosaurs Help with Sentence Construction

By | December 10th, 2019|Key Stage 1/2|Comments Off on Dinosaurs Help with Sentence Construction

Dinosaurs Help with Sentence Construction

A team member from Everything Dinosaur spotted this innovative approach to teaching Key Stage 1 children the rudiments of sentence construction whilst on a visit to the school to conduct a dinosaur and fossil themed workshop.  In order to help the Year 1 children to understand how sentences are formed, the teacher had drawn a dinosaur and asked the children to describe it.  The adjectives the class came up with when they viewed the drawing were recorded and then these adjectives were used to construct a sentence.

Dinosaurs Help with Sentence Construction

Sentence construction in Lower Key Stage 1.

Looking at sentence construction in Lower Key Stage 1.

Picture Credit: Everything Dinosaur

We are not quite sure what the genus the dinosaur illustration represents, perhaps it is one that has yet to be formally scientifically described.  That’s not the point, when it came to using adjectives the spotty dinosaur provided the class with plenty of opportunities to come with lots of “describing words”.

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